Some good news

to recap, there are three key subsystems making up the heart of the quencher.

1 of 3 = selective absorber: there are many sources in India that make selective absorbers. I found one in  Bangalore that can work with Aluminium (and not just copper = expensive), using a ‘black chrome’ coating with a guaranteed 30 year operational lifetime

2 of 3 = custom heat pipe: there is a vendor in Pune, Maharashtra, that supplies heat pipes into the solar thermal water heating market, who can also make custom heat pipes.

3 of 3 = evaporator-condenser: We need to get started on a detailed design on this part of the system.

Any volunteers?;) Perhaps a mechanical engineer who has worked with HVAC systems, or automotive radiators, or pressure vessels?


About Vishwa Narayan

who can live without water? drinking water for all is my goal, through Theertham, a not-for-profit organization i founded and registered in Texas. you can reach me at
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